參數(shù)資料
型號: μPD4264400
廠商: NEC Corp.
英文描述: 64 M-Bit Dynamic RAM(64M 動(dòng)態(tài)RAM)
中文描述: 64 m位動(dòng)態(tài)隨機(jī)存儲(chǔ)器(RAM的6400動(dòng)態(tài))
文件頁數(shù): 17/28頁
文件大?。?/td> 256K
代理商: ΜPD4264400
μ
PD4264400, 4265400
17
Fast Page Mode Read Cycle
Remark
In the fast page mode, read, write and read modify write cycles are available for each of the consecutive
CAS cycles within the same RAS cycle.
RAS
V
IH—
V
IL—
CAS
V
IH—
V
IL—
t
RASP
t
RHCP
t
RSH
t
PC
t
CSH
t
CPN
t
CAS
t
CP
t
CAS
t
CP
t
CAS
t
RCD
t
CRP
t
RP
Address
V
IH—
V
IL—
t
ASR
t
RAH
Row
t
ASC
t
RAD
Col.
t
CAH
t
ASC
Col.
t
CAH
t
ASC
Col.
t
CAH
t
RAL
WE
V
IH—
V
IL—
t
RCS
t
RCH
t
RCH
t
RCS
t
RCS
t
RRH
t
RCH
OE
V
IH—
V
IL—
t
OES
I/O
V
OH—
V
OL—
t
RAC
t
AA
t
CAC
t
CLZ
t
OEA
t
OLZ
Data out
Data out
t
OEA
t
OLZ
t
ACP
t
OEZ
t
OFF
t
CAC
t
CLZ
t
AA
t
OEA
t
OLZ
t
ACP
t
OEZ
t
OFF
t
CAC
t
CLZ
t
AA
Data out
t
OEZ
t
OFF
Hi-Z
Hi-Z
Hi-Z
Hi-Z
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μPD4265400 64 M-Bit Dynamic RAM(64M 動(dòng)態(tài)RAM)
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